Polynoids

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The AC polynoid is an electrically operated, open loop AC linear
induction motor that provides a constant force over its entire stroke. It
can run directly off of 115 / 230 VAC line voltage or with an adjustable
frequency drive. Its direction of travel
is reversible by switching 2 of the 3 leads.

A polynoid is made up of two basic parts, a rod and a stator. The stator is a series of interconnected coils
that are housed in a toothed steel assembly that is available with fins for
improved heat dissipation. An optional holding coil is available for end
holding at one or both ends. The rod is
a custom copper clad steel shaft, with tapped mounting holes. The rod can be supplied in any length.

Polynoid linear actuators are ideal replacements for air
cylinders, and can be used to actuate electrical switch gears, for diverting
products on conveyer belts.

·Forces to 445 N [100 Lbs]

·Acceleration to 9.8 m/s2 [1g]

·Speeds to 2.3 m/s [90 in/sec]

·Optional built-in electronic brake (holding coil) for
end holding

·Integral rulon bearings

·Low cost, powered by AC line voltage or adjustable
speed with an inverter

·Provides long stroke with uniform force

·Stroke limited by end stops on moving rod

·Limited duty cycle applications

·Virtually maintenance free

·Single or 3-phase AC line voltage, 50 or 60 Hz (Single-phase requires use of external capacitor)

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Polynoid

Finned Series

Smooth Series

Coils

A in [mm]

B in [mm]

Weight. LBS [kg]

Coils

A in [mm]

Weight. LBS [kg]

2

2.124 ± .051 [54.2 ± 1.3]

3.499 ± .040 [88.9 ± 1.0]

1.7 [0.77]

2

2.124 ± .051 [54.2 ± 1.3]

0.85 [0.39]

3

2.514 ± .056 [63.9 ± 1.4]

3.879 ± .045 [98 .5 ± 1.1]

1.9 [0.86]

3

2.514 ± .056 [63.9 ± 1.4]

0.86 [0.39]

4

3.085 ± .071 [78.4 ± 1.8]

4.450 ± .060 [113.0 ± 1.5]

2.5 [1.1]

4

3.085 ± .071 [78.4 ± 1.8]

1.39 [0.631]

6

4.060 ± .091 [103.1 ± 2.3]

5.425 ± .080 [137.8 ± 2.0]

3.2 [1.5]

6

4.060 ± .091 [103.1 ± 2.3]

1.94 [0.88]

8

5.035 ± .111 [127.9 ± 2.8]

6.400 ± .100 [162.6 ± 2.5]

4.2 [1.9]

8

5.035 ± .111 [127.9 ± 2.8]

2.50 [1.14]

9

5.045 ± .101 [128.1 ± 2.6]

6.410 ± .090 [162.8 ± 2.3]

4.0 [1.8]

9

5.045 ± .101 [128.1 ± 2.6]

2.20 [1.0]

12

6.986 ± .151 [177.4 ± 3.8]

8.351 ± .140 [211.2 ± 3.6]

5.8 [2.6]

12

6.986 ± .151 [177.4 ± 3.8]

3.60 [1.64]

24

13.125 ± .271 [333.4±6.8]

14.802 ± .160 [376.0 ± 4.1]

12.8 [5.8]

24

Polynoid Rods

Length

Catalog Number

inch

mm

4

101.6

LTPY001-073

6

152.4

LTPY001-064

8

203.2

LTPY001-066

9

228.6

LTPY001-067

10

254.0

LTPY001-070

12

304.8

LTPY001-068

18

457.2

LTPY001-074

24

609.2

LTPY001-075

36

914.4

LTPY001-076

48

1219.2

LTPY001-077

60

1524.00

LTPY001-078

72

1828.8

LTPY001-079

Capacitors for Single-Phase Units

Capacitor Code Number

Capacitor Rating

mFd

Type

C1

10

165V C

C2

43-53

330V E

C3

189-227

165V E

C4

3

370V C

C5

10

330V C

C6

88-108

330V E

C7

64-77

330V E

C8

21-25

330V E

C9

30-36

330V E

C10

4

370V C

Polynoid Capacitor Connection:
The Polynoid leads should be connected to the capacitor and AC input. Refer to diagram below.

Depending on which end of the capacitor is connected to the AC Line, the polynoid will move in one direction of the other

Black Wire = AC Neutral
Red Wire = One side of the capacitor
White Wire = One side of the capacitor